英语词汇mental arithmetic怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	mental arithmetic
释义	mental arithmeticBrE /ˌmentl əˈrɪθmətɪk/NAmE /ˌmentl əˈrɪθmətɪk/ noun [U] adding, multiplying, etc. numbers in your mind without writing anything down or using a calculator 心算
随便看	run into run into run into run into run into sb run into sb/sth run into sth run into the ground run in your blood run its course run like clockwork runnabilities runnability runnel runnels runner runner runner bean runner beans runnered runners runners-up runner up runner-up runner-ups

英汉双解词典包含314281条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。